Email Us

info@npdes.com

(888) 397-9414

9:00am EST–4:00pm PST

Office Hours

M–F, 9:00am–4:00pm EST

Classes

Register Here

Email Us

info@npdes.com

(888) 397-9414

9:00am EST–4:00pm PST

Office Hours

M–F, 9:00am–4:00pm EST

Classes

Register Here

Email Us

info@npdes.com

 


Class Registration Calendar

24
Nov
2025

CSI - CACEO Certified Stormwater Inspector (PDT)

11-24-2025 8:00 am - 11-25-2025 2:00 pm
Online Webinar
$575 + registration
CSI - CACEO Certified Stormwater Inspector (PDT)

We are no longer accepting registration for this event

01
Dec
2025

CSI-MS4 Idaho (PT)

12-01-2025 8:30 am - 12-02-2025 4:30 pm
Online Webinar
$799 + registration
01
Dec
2025

CSI-MS4 Oregon (PT)

12-01-2025 8:30 am - 12-02-2025 4:30 pm
Online Webinar
$799 + registration
01
Dec
2025

CSI-MS4 Washington (PT)

12-01-2025 8:30 am - 12-02-2025 4:30 pm
Online Webinar
$799 + registration
02
Dec
2025

CSI Industrial Re-Certification (ET)

12-02-2025 10:30 am -4:30 pm
Online Webinar
$299 + registration
03
Dec
2025

CACEO - Illicit Discharge Detection and Elimination (PDT)

12-03-2025 10:00 am -12:00 pm
Online Webinar
$75 + registration
CACEO - Illicit Discharge Detection and Elimination (PDT)
04
Dec
2025

Florida Stormwater Erosion and Sediment Control Inspector

12-04-2025 8:30 am - 12-05-2025 4:00 pm
Online Webinar
$225 + registration
Florida Stormwater Erosion and Sediment Control Inspector
08
Dec
2025

CSI-MS4 Delaware/Virginia (ET)

12-08-2025 8:30 am - 12-09-2025 4:30 pm
Online Webinar
$799 + registration
08
Dec
2025

CSI-MS4 Maryland/Pennsylvania (ET)

12-08-2025 8:30 am - 12-09-2025 4:30 pm
Online Webinar
$799 + registration
10
Dec
2025

CSI Construction Re-Certification

12-10-2025 10:30 am -4:30 pm
Online Webinar
$299 + registration